Belt-guide.



E. R..BROWN.

BELT GUIDE.

APPLICATION FILED 1AN.15,1917.

1 ,240,537. Patented Sept. 18, 1917.

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BELT-GUIDE.

ea set.

Application filed January 15, 1917.

To all whom it may concern:

Be it known that l, EDWARD R. Brown, a citizen of the United States, residing at Rocky Ford, in the county of Books and State of Colo, have invented certain new and useful Improvements in Belt-Guides; and I do declare the following to be a full, clear, and exact such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to belt guides and more particularly to a device of this character, for retaining a driven belt in operative alineinent on the drive or fly wheel of a traction engine.

To traction engineers and particularly to persons familiar with the threshing of grain it is known, that unless the engine fly wheel and the belt wheel on the separator are brought in perfect alinement when a setting is made, the belt carried thereon will creep from the drive wheel and that time is lost in replacing the belt and bringing chines in such alineinent that the operate succewfully.

t is also known that side winds blowing against the belt or the unlevelsetting of the engine also has a tendency to throw the belt from alineinent and should the belt run from the drive wheel it is apt to be more or less damaged by contact with the driving gears of the fly wheel or it may cause injury to the machine or persons standing near.

It is, therefore, the object of the present invention to provide simple and edective means whereby a driven belt of this character may be held in proper operative alineinent on the fly wheel of traction or like engines regardless of any slight mis-alinement of the machines or the blowing of side winds transversely across the belt.

A. fur her object of the invention is to provide means whereby the guide members may be moved to throw the belt from the drive wheel or may be further utilized to assist in placing the belt on the wheel after the machines are brought into operative alinernent.

In accomplishing these objects I have provided' improved details of structure, the prebelt will Specification of Letters E'atent.

description of the invention,

the ma;

lPatented Sept. its. 191?.

Serial No. 142,395.

ferred forms of which are illustrated in the accompanying drawings, wherein Figure l is a perspective view of a portion of a traction engine, having a belt guide embodying the present invention mounted thereon and illustrating its mounting relative to the fly wheel and belt.

Fig. ll is a plan view particularly showing the relative positions of the belt and guide rollers.

Fig. H1 is a front view of the same parts.

Fig. 1V is a side elevation of the guide parts and fly wheel.

Fig. V is a detail perspective view showing the arm supporting block and stop members thereon.

Referring more in ings:-

1 designates an engine of the ordinary type having a fly wheel 2 over which a belt is adapted to travel. 1

Mounted on the engine body, preferably at a point slightly back of the dy wheel is an outwardly extending bracket 4 comprising arms 5 and 6 which are attached to or formed integrally at their inner ends with a base member 7 that may be curved to lit the body of the engine to which the device is applied and is adapted to receive bolts or rivets 8 for attaching the bracket to the engine body.

At the outer end of the bracket is a yoke 9, comprising upper and lower arms l0-11 having vertically alining bearings l2- l2 at their ends adapted to receive a bolt or pin 13 which extends through a block "it to piv otally mount the latter between the yoke arms.

Pivotally mounted on the block 14 by means of a bolt 15 is an arm 16 comprisin a rearwardly extended handle portion 1 and a downwardly and forwardly directed arm 18 that is so curvedthat when supported in functional position it will closely underlie the periphery of the belt wheel and has a detail to the drawbifurcated end portion comprising laterally I directed arms 19-20 which terminate at 0'9 posits sides of the belt 3 forwardly of the axial point of the wheel 2 and in slightly ofiset transverse relation with the belt for a purpose presently set forth.

Revoluhly mounted on pins 2l- 2l' that extend verticall from the ends of the arms l9-20 are guide rollers 22-22 which are 2 means? adapted to engage the belt at its opposite Assuming that the parts are so constructed longitudinal edges, should it start to creep and mounted on an engine, when the operspring to a h from the fly wheel to retain it in operative ator wishes to place the belt on the fly wheel position on the wheel. o the engine, after the engine has been hen the arm 18 is not needed or when brought in proper alinement and spacing the belt is being started on the fly wheel, it distance from the driven machine, the belt may be moved downwardly on its pivotal 3 is started on the edge pf the fly wheel 2.

mounting so as not to interfere with placing he arm 16 is then swung outwardly on its of the belt, but in order to hold the arm in supporting block 14 and the guide portion proper position when it is being used I pro- 18 ra sed to bring the rollers 22-22 into vide a locking device, comprising a in 23 functional posltion at opposite sides of the t at is slidably mounted in a bearing 24 that belt. e engine 1s then started to revolve a spring 25 that is attached thereto and bears urged against the outer edge of the belt to end of the pin will seat'within the notched en the arm 18 reaches a line parallel surface 26 of a sector plate 26 that is atwith the dlrectlon of the belt the stop memtached to the block 14. her 33 engages a face of the yoke arm 10 to lleans for releasing the locking pin from imit a f t 1 mov ment and the arm is the notched sector comprises a grip lever 27 yl ldmgly ld in hi p siti n by the spring that is pivotally attached to the outer end the latter being 0 h Strength that 1111- of the handle 17 and held in spaced relation der normal conditions the belt is held on the therewith by an offset portion 28; the lockw eel, no matter if. the engine should be ing pin 23 being pivotally connected with slightly out of alinement or level or the belt the lever in such a manner that when the yed ate ally by Cross Winds. i member i pressed t d th lever 17 f it is desired to remove the belt from the the pin will be drawn outwardly against the fly Wh el he operator draws inwardly on the pressure of the spring to release the locking 11511152118 1 o throw the arm 18 outwardl end from the sector notches so that the arm g n h e l lon 0f the spring'30 and by may be moved vertically on its mounting to e ngag ment of the roller 22 against the raise or lower the guide arm. inner edge of the belt the latter is moved To normally urge and yieldingly retain outwardly Ifandll the belt gradually pushed w ee vide a tensioning spring 30 which is atyproviding the notched sector it Will be tached at one end to a hook 31 on the bracket en that the arm 18 may be locked at an arm 6 and at its opposite end to a hook 32 elevation to engage the belt or when not necon the arm 19. he inward swing of the ssary may be moved downwardly. and guide is li it d t a li ll l with th locked in a position as to not interfere theredirection of the belt and its outward move- W1thment at a line practically perpendicular to With a device of this character it will be the belt line; the travel of the arm being e n that a b It may be drawn to position stopped at these limits respectively by. stop and held 111 alinement on the drive wheel members 33 and 84 mounted on adjacent and may also be moved to easily and quickl faces of the block 14 which extend upwardly throw the belt from the wheel, thereby elimiare therefrom to contact opposite faces of the g ing he danger to workmen accompanyyoke arm 10. ng the usual method of removing and plac I also attach one end of a tensioning 111g such'belts.

00k 37 on the lower yoke Having thus described my invention what bearing 12, and its opposite end within an 1 clalm as new therein and desire to secure 115 aperture 38 in the arm 18 to draw downby Letters-Patent, is:

wardly on the arm so that when it is re- 1. A belt guide comprisinga bracket havleased it will be automatically moved by the ng an end yoke, a block pivotally mounted spring from functional position. in said yoke,a guide arm pivotally mounted i s before stated the guide rollers 2222 on said block having a free end adapted to are in offset relation relative to a transverse swung into and out of alinement with .the

that should the rollers be directly opposite be t carried by said wheel, rollers carried by each other and in close relation to the longit e free end of the 'uide arm for engagin tudinal edges of the belt on swinging the opposite edges of t e belt, and means for arm 18 outwardly the belt would bind beyieldingly retaining said arm in alineinent tween the rollers, however, by arranging the with the line of the belt wheel.

rollers in the offset relation binding is 'pre- 2. A belt guide comprising a bracket hat vented without effecting the guiding of the, ing an end yoke, a block pivotally mounted belt. in said; yoke, a guide arm pivotally mounted aao edges of the on said block having a free end adapted to swing into and out of alinement with the line of a belt wheel and toward and from a belt' carried by said wheel, rollers carried by the free end of the guide arm for engaging opposite edges of the belt, means for yieldingly retaining said arm in alinement with the line of the belt wheel, and means for locking the free end of out of functional position.

3. A belt guide comprising a bracket havan end yoke, a block having a vertical axial line pivotally mounted in said yoke, a guide arm pivotally mounted on the said block havin a rearwardly extended lever arm and a ol'wardly xtending bifurcated arm adapted to swing vertically toward and away froma belt, a sector plate mounted on the said block having a notched edge, a latch pin mounted on the lever arm adapted to seat in said sector notches to lock the outer end of the guide arm in a vertically adjusted position, rollers mounted at the end of the bifurcated arm adapted to engage opposite belt, and a tension spring at tached to the bracket and to the forward end of the guide arm to yieldingly retain the latter in functional alinement.

the guide arm in or.

4. A belt guide comprising a supporting bracket having an end yoke, a block having a vertical axial line revolubly mounted in said yoke, stop members on the block for limiting its revoluble movement, a guide arm pivotally mounted on the said block having a rearwardly extended lever arm and a forwardly extending bifurcated arm adapted to swing vertically toward and away from a belt, a sector plate mounted on the said block having a notched edge, a latch pin mounted on the lever arm adapted to seat in said sector notches to lock the outer end of the guide arm in a vertically adjusted position, rollers mounted at the end of the bifurcated arm in offset transverse relation to the belt and adapted to engage opposite edges thereof, a spring attached to the bracket and to the forward end of the guide arm to yieldingly retain the latter in functional alinement with the belt, and .a spring attached to the lever arm and to a yoke member to urge the guide arm upwardly.

In testimony whereof I afiix my signature.

EDWARD R. BROWN. Witnesses:

Gr. STARBUQK,

W. H. BARTLETT. 

